Photoshop Plugin for SGI file type, applies alpha so data is lost.

A good example of what is needed it TGA filetypes work fine. Make a TGA image, add an alpha channel to determine the transparency. Save. The reopen the file. The image is still there, the alpha channel is still there. It is all good.

I have old sgi images. Typically named with .rgb file type.

If I open one with an alpha channel, so some reason, Photoshop uses the alpha channel and applies it the the image and the deletes the channel. So the part of the image with alpha is lost.

It makes the image have a un-wanted halo effect when using alpha in rendering.

Please fix the plugin to work like TGA or help me find a way to diable applying the alpha when the file is opened.